(19)
(11) EP 1 015 428 A1

(12)

(43) Date of publication:
05.07.2000 Bulletin 2000/27

(21) Application number: 98946097.7

(22) Date of filing: 17.09.1998
(51) International Patent Classification (IPC)7: C07D 207/416
(86) International application number:
PCT/US9819/364
(87) International publication number:
WO 9914/192 (25.03.1999 Gazette 1999/12)
(84) Designated Contracting States:
BE CH DE FR GB IT LI SE

(30) Priority: 18.09.1997 US 932851
18.09.1997 US 933266

(71) Applicant: PIERCE CHEMICAL COMPANY
Rockford, IL 61105 (US)

(72) Inventors:
  • BREMMER, Martin, Lee
    Rockford, IL 61102 (US)
  • WILKES, Marty, Carey
    Rockton, IL 61072 (US)

(74) Representative: Beresford, Keith Denis Lewis et al
BERESFORD & Co.High Holborn2-5 Warwick Court
London WC1R 5DJ
London WC1R 5DJ (GB)

   


(54) SULFO-N-HYDROXY SUCCINIMIDE AND METHOD OF PREPARATION